Patents by Inventor James V. Krohn

James V. Krohn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Oriented high density polyethylene film, compositions and process suitable for preparation thereof
    Patent number: 6743845
    Abstract: The draw ratio and/or rate of stretch of HDPE in film orientation can be increased, or the breakage frequency at a given draw ratio and draw rate decreased by the addition of an orientation improving amount of a normally solid fatty carboxylic acid having a melting point lower than the orientation temperature of the film.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: June 1, 2004
    Assignee: Equistar Chemicals, L.P.
    Inventors: Richard F. Tate, James V. Krohn
  • Oriented high density polyethylene film, compositions and process suitable for preparation thereof
    Publication number: 20030212175
    Abstract: The draw ratio and/or rate of stretch of HDPE in film orientation can be increased, or the breakage frequency at a given draw ratio and draw rate decreased by the addition of an orientation improving amount of a normally solid fatty carboxylic acid having a melting point lower than the orientation temperature of the film.
    Type: Application
    Filed: June 18, 2003
    Publication date: November 13, 2003
    Applicant: Equistar Chemicals, L.P.
    Inventors: Richard F. Tate, James V. Krohn
  • Oriented high density polyethylene film, compositions and process suitable for preparation thereof
    Patent number: 6635701
    Abstract: The draw ratio and/or rate of stretch of HDPE in film orientation can be increased, or the breakage frequency at a given draw ratio and draw rate decreased by the addition of an orientation improving amount of a normally solid fatty carboxylic acid having a melting point lower than the orientation temperature of the film.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: October 21, 2003
    Assignee: Equistar Chemicals L.P.
    Inventors: Richard F. Tate, James V. Krohn
  • Oriented high density polyethylene film, compositons and process suitable for preparation thereof
    Publication number: 20030040584
    Abstract: The draw ratio and/or rate of stretch of HDPE in film orientation can be increased, or the breakage frequency at a given draw ratio and draw rate decreased by the addition of an orientation improving amount of a normally solid fatty carboxylic acid having a melting point lower than the orientation temperature of the film.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 27, 2003
    Applicant: EQUISTAR CHEMICALS, L.P.
    Inventors: Richard F. Tate, James V. Krohn
  • Process for the manufacture of calcium chloride
    Patent number: 4704265
    Abstract: This invention relates to a process for the production of an aqueous calcium chloride solution, which process comprises: locating a charge of calcium carbonate within a reaction vessel; and contacting an aqueous solution containing hydrochloric acid with the calcium carbonate charge to produce carbon dioxide and the aqueous calcium chloride solution. The carbon dioxide produces a foam at the top of the aqueous calcium chloride solution and entrains therewithin at least a portion of any fines contained in such solution. In one embodiment, the fines are removed from the reaction system by allowing the foam and its entrained fines to overflow the reaction vessel. In another embodiment, removal of the fines is achieved by providing a foam reservoir into which the foam and its entrained fines continuously enter and a defoaming mechanism for breaking down the entering foam.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: November 3, 1987
    Assignee: The Dow Chemical Company
    Inventors: James V. Krohn, Melvin J. Heidner, Edward F. Pittman, Landon S. Roberts